Vocab
Everyday Machines
Work
True or False
Double Dare

### 100

How do scientists define work?
Work is using force to move an object over a distance.

### 100

The jar of peanut butter is a____?
What is a screw.

### 100

The mother is waiting for her son to finish trying on some new pants. She is leaning against the wall waiting. Is there any work here? Why?
There is no work being done here because the mom is not moving the wall and the wall is not moving the mom.

### 100

I can use a thermometer to measure force?
False, it is a called a spring scale.

### 100

On a piece of paper write down an amount you want to wager before you are told the question. If correct u get that many points, if incorrect you lose that many. Wager wisely!

### 200

How does a Wheel and Axle help us do work?
You apply force over a greater distance on the outside wheel that turns the inner wheel ( axle) to do the work.

### 200

Every morning the Janitor raises the flag outside of school. What simple machine makes the work easier for him to do this?
What is the pulley.

### 200

Dad is cutting wood in the backyard and using an axe to split it. Is work being done here and how do we know?
There is work being done here because dad is using a downward force on the wood that changes into a sideways force once it makes contact with the wood. Bonus! What simple machine is being used?

### 200

Scissors are a wedges and levers?
True, the levers move the wedges together and apart to cut through objects.

### 200

On a piece of paper write down an amount you want to wager before you are told the question. If correct u get that many points, if incorrect you lose that many. Wager wisely!

### 300

Describe how an Inclined Plane helps us do work?
The inclined plane changes the amount of work by changing the distance

### 300

I have many nails in my new floor at my house, what tool would I use to remove them and what kind of simple machine is it?
What is hammer and it is a lever.

### 300

I have left my roller skates outside for the spring and summer and am bringing them in not before it snows. This part of my skates are now covered in a crumbly brown gunk that I cannot get off. What part needs to be replaced?
What is the wheels and axles. Bonus! What has happened to my skates?

### 300

Simple machines help us do work?
True. Bonus! How!?

### 300

On a piece of paper write down an amount you want to wager before you are told the question. If correct u get that many points, if incorrect you lose that many. Wager wisely!

### 400

What is the difference between a wedge and a lever?
A wedge splits things apart and can move as it does work while a lever just changed the direction of applied force.

### 400

Some day I would love to travel on the ocean in a sailboat. What shape should my boat have so it can cut through the water?
What is wedge like shape

### 400

We need a new book shelf in class because we just keep acquiring more and more books. I need this simple machine to help me keep the book shelf standing.
What are screws.

### 400

Friction can cause a person or simple machine to do more work?
True, because....(bonus)

### 400

On a piece of paper write down an amount you want to wager before you are told the question. If correct u get that many points, if incorrect you lose that many. Wager wisely!

### 500

How does a pulley help us do work?
A pulley changes the direction of force needed to do the work.

### 500

A can opener has what time of simple machine?
What is wheel and axle, lever, screw, and wedge.

### 500

Build me a ramp that will let me do less work when loading my moving truck. (how would it look and why)
I would make an inclined plane that is longer that will spread out the amount of force needed to move the boxes over a longer distance.

### 500

A pencil sitting on a desk is doing work.
False, it is not doing work because the pencil and the desk are not moving because they are using balanced forces.

### 500

On a piece of paper write down an amount you want to wager before you are told the question. If correct u get that many points, if incorrect you lose that many. Wager wisely!